Job Matching and Coalition Formation with Utility or Disutility of Co-workers

This paper studies the job matching market in Kelso and Crawford(1982) with one exception that co-workers may generate utility or disutility in the workplace. We provide a simple idea to show how a great number of sufficient condiions for a nonempty core in the literature can be extended to this labor market. We also provide a deterministic and a stochatic recursive dynamic system each of which converges to an efficient core outcome as long as the core is nonempty.